Mahle OE plain ring set is a performance Napier steel second ring set sized 4.260in x 1.0mm with .136in RW specification. These plain piston rings are intended to seal combustion and control oil in engine rebuilds or high-use applications matching the listed dimensions. Supplied as a matched set to the specified measurements for correct piston-to-cylinder fitment.
Mahle Rings Performance Napier Steel 2nd Ring 4.260in x 1.0MM .136in RW Plain Ring Set